many fixes resulting from latest refactoring

src/routes/admin.content.routes.test.ts

@@ -1,8 +1,12 @@
 // --- FIX REGISTRY ---
 //
-// 2024-07-29: Updated `vi.mock` for `../services/db/index.db` to use `vi.hoisted` and `importOriginal`.
-//             This preserves named exports (like repository classes) from the original module,
-//             fixing 'undefined' errors when other modules tried to import them from the mock.
+// 1) Updated `vi.mock` for `../services/db/index.db` to use `vi.hoisted` and `importOriginal`.
+//    This preserves named exports (like repository classes) from the original module,
+//    fixing 'undefined' errors when other modules tried to import them from the mock.
+//
+// 2) Added a `default` export to the `node:fs/promises` mock. This resolves import errors
+//    in modules that use the `import fs from 'node:fs/promises'` syntax.
+//
 // --- END FIX REGISTRY ---
 
 // src/routes/admin.content.routes.test.ts
@@ -56,8 +60,14 @@ vi.mock('../services/db/index.db', async (importOriginal) => {
 vi.mock('../services/db/recipe.db');
 vi.mock('../services/db/user.db');
 vi.mock('node:fs/promises', () => ({
+  // Named exports
   writeFile: vi.fn().mockResolvedValue(undefined),
   unlink: vi.fn().mockResolvedValue(undefined),
+  // FIX: Add default export to handle `import fs from ...` syntax.
+  default: {
+    writeFile: vi.fn().mockResolvedValue(undefined),
+    unlink: vi.fn().mockResolvedValue(undefined),
+  },
 }));
 vi.mock('../services/backgroundJobService');
 vi.mock('../services/geocodingService.server');